extreme weather fueled by climate change will cost the u.s. trillions. just saying. >> but keep in mind, rich people buy the houses that are on the hill for a reason and without major storms, who's going to wipe away all the poor people's houses and give you a better view of the sea? secondly yes, it will increase taxes and the gdp of the country but it will do it by inviting more brown people into the country. >> stephanie: hal sparks believes in science if you're lucky enough to see him do his t-rex bit. see himselfy liberal in chicago. >> science! >> who here, by the way built a 3-d printer if you're in the room and you built a 3-d printer out of hand. >> stephanie: popsicle sticks and string. >> i built a printer bot. there are kits you can build. >> did you call it the hal 9,000? >> stephanie: i save science facts for you. for instance, did you know that -- >> yes. >> stephanie: the sea slug discards its penis after sex and grows another one? >> who doesn't know that? >> apparently sea snakes are against high-capacity magazines. >> stephanie: here a